Luxembourg
Luxembourg City in September
🍂 AutumnPleasant and some showers.
🎒 Pack: light layers
Why September scores 9.5What goes into the score
How it works- Weather comfort9.2
- ✓Comfortable temperatures (19°C highs / 10°C lows)
- ✓Comfortable humidity (dew point 9.8°C)
- ✓Mostly dry (~66 mm rain)
- Air quality10.0
- ✓Good (within WHO guideline) (PM2.5 ~4 µg/m³)
- Seasonal hazards10.0
- ·No notable seasonal hazards
- Safety baseline9.0
- ·Normal precautions
| Sep | Jul | |
|---|---|---|
| Score | 9.5 Excellent | 9.6 Excellent |
| Season | 🍂 Autumn | ☀️ Summer |
| High / low | 19° / 10° | 24° / 14° |
| Rain | 66 mm | 72 mm |
| Humidity | dew pt 10° | dew pt 12° |
| PM2.5 | 4 µg/m³ | 6 µg/m³ |
Typical-month data: NASA POWER (MERRA-2 reanalysis) 2015–2024 (modelled, not a forecast). Temperatures: Luxembourg Airport weather-station normals. Rainfall: Luxembourg Airport weather-station normals (national met service).
Holidays & crowdsSeptember 2027
No long holidaysNo long public-holiday weekends this month. School holidays aren't counted, so check those if you want to avoid family crowds.
No national public holidays in Luxembourg this month.
National holidays only; regional holidays and school breaks aren't included. Source: holidays (open-source public-holiday calendar).
Explore Luxembourg CityEvents, sights, food & souvenirs
Check event dates locallyThe capital of the Grand Duchy sits on cliffs above deep river valleys, with an old town and fortifications listed by UNESCO. It is a compact, walkable city combining history and European institutions.
SchueberfouerDate variesDates vary; usually late August to early September
Large funfair with roots in a 14th-century market.
Why go: Fun for families; expect crowds on evenings and weekends.
Where: Glacis square
Coming up later
WinterlightsDate variesDates vary; usually late November to early January
Christmas markets and seasonal events around the old town.
Why go: A festive time to visit, with mulled wine and fritters.
Where: Squares across the city
EmaischenDate variesDates vary; Easter Monday
Traditional market famous for clay bird whistles.
Why go: A charming local tradition and a good place to buy a Péckvillchen.
Where: Marché-aux-Poissons in the old town
National DayEvery year23 June every year (celebrations begin the evening of 22 June)
Celebrates the Grand Duke's official birthday with fireworks, a parade and street parties.
Why go: The eve has fireworks and parties; the day itself is a public holiday.
Where: Across the city
Bock Casemates
Network of underground tunnels carved into the rock as part of the city's fortifications.
💡 Wear a jacket; it is cool and damp inside.
Chemin de la Corniche
Walkway along the old ramparts, often called the most beautiful balcony in Europe.
Grund
Picturesque riverside quarter in the valley below the old town, with pubs and restaurants.
Grand Ducal Palace
Official residence of the Grand Duke in the old town.
💡 Interior guided tours are only offered in summer and must be booked.
Notre-Dame Cathedral
Gothic and Renaissance cathedral that holds the crypt of the grand ducal family.
Judd mat Gaardebounen
Smoked pork collar with broad beans, the national dish.
💡 Traditional Luxembourgish restaurants
Gromperekichelcher
Crispy fried potato fritters with onion and herbs.
💡 Christmas markets and fairs
Bouneschlupp
Hearty green bean soup with potatoes and bacon.
💡 Traditional restaurants
Rieslingspaschtéit
Pastry pie filled with meat in Riesling jelly.
💡 Bakeries and delis
Crémant de Luxembourg
Sparkling wine from the Moselle valley.
💡 Wine shops and supermarkets
Péckvillchen
Traditional clay bird whistle, sold especially at the Emaischen market.
💡 Souvenir shops and the Emaischen market
Villeroy & Boch ceramics
Porcelain and tableware from a company with roots in Luxembourg.
💡 Brand stores in the city
Airport transfer Kiwitaxi
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